White mage. I like to level things evenly, but understood I could use one high level job for doing events and stuff. I picked WHM and so far I've never had a problem attending things. Most people in the game have multiple level 50 jobs, so even IF they already have enough white mages, it's usually not a problem for someone else to change, and there's no fights where the party is going to say "Yeah... we kinda don't need a white mage". Though, I do recommend you start leveling other jobs once you get white mage to 50. After all, variety's good, and some day you may be the guy who needs to change off of white mage so a newer player can participate